EXCLUSIVE AT NET-A-PORTER.COM. N°21's knotted mules are loved by style influencers such as Man Repeller's Leandra Medine for their ability to elevate the simplest of outfits. Updated for spring in navy satin, this pair is adorned with an opulent crystal-embellished brooch and striped grosgrain bow. They have been made in Italy and are set on a curved 110mm heel.